Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179908 | Iron oxide red pigments, process for the production of iron oxide red pigments and use thereof | Rolf Braun, Ulrich Meisen | 2001-01-30 |
| 6042642 | Iron oxide yellow pigments, a method of producing iron oxide yellow pigments and the use thereof | Rolf Braun, Ulrich Meisen | 2000-03-28 |
| 5916360 | Process for the preparation of iron oxide yellow pigments and the use thereof | Rolf Braun, Ulrich Meisen | 1999-06-29 |
| 5744108 | Process for the thermal treatment of titanium dioxide in a circulating fluidized bed and the use thereof | Bernd Holle, Jorg Krekel | 1998-04-28 |
| 4988495 | Process for the recorvery of sulphuric acid in the production of titanium dioxide | Gerhard Wiederhoft, Wolfgang Muller, Gunter Lailach | 1991-01-29 |
| 4902485 | Process for the production of titanium dioxide pigments | Gunter Lailach | 1990-02-20 |
| 4328040 | Process for the production of titanium dioxide pigments with high weather resistance | Peter Panek, Peter Woditsch, Heribert Stutgens | 1982-05-04 |
| 4318843 | Inorganic pigments with improved gloss and good distribution in lacquer binders | Klaus Kohler, Peter Woditsch, Heribert Stutgens, Klaus Nollen, Hans Sander | 1982-03-09 |
| 4318844 | Inorganic pigments with improved gloss and distribution in lacquer binders | Klaus Kohler, Peter Woditsch, Heribert Stutgens, Klaus Nollen, Hans Sander | 1982-03-09 |